Grease dispenser with means for jarring the grease from the container to the pump chamber



Jime 5, 1951 H. H. CHINCHOLE 2,555,532 GREASE DISPENSER WITH MEANS FORJARRING THE GREASE FROM THE CONTAINER TO THE PUMP CHAMBER 3 Sheets-Sheet1 Filed April 21, 1947 Jilne 5, 1951 H. H. CHINCHOLE 2,555,532

GREASE DISPENSER WITH MEANS FOR JARRING THE GREASE v FROM THE CONTAINERTO THE PUMP CHAMBER Filed April 21. 1947 3 Sheets-Sheet 2 5 4 z a 7 M v.M 66 m w m a m 2 M 5 A M .w 6 b mm um v\\ v. 0 O m D\ .5 m 1 z 77 J n Mam J l 0 7 j M l 6 w Q m R J h. I [H M -1 0 a w .0 0 3 l a m 1.1 w- 4 4 m5w 5. W 58 g v a 6 z H L a z .w III 6 2 x 4w 6 J M v '0 l l 7 5 w 1 z Im 1 1 June 5, 1951 H CHINCHOLE" 2,555,532 GREASE DISPENSER WITH MEANSFOR JARRING THE GREASE TO THE PUMP CHAMBER 5 Sheets-Sheet 3 FROM THECONTAINER Filed April 21, 1947 T R 3 N g I K a a g w z 8 N 5 a b. a R 4f a a g 1 N N a: amtiaaaamu W 0 3 R R N m N 0 g 21 3 gag- 1 a 9 D 0 H H\Qm I" w I I" v nlwv In \r e g 3 w a; 3 E. x Q A L? m r1 Patented June5, 1951 OFFICE GREASE DISPENSER WITH MEANS FOR JARRING THE 1 GREASE FROMTHE CONTAINER TO THE PUMP CHAMBER Henri'H. Chinchole, Chatou, FranceApplication April 21, 1947, Serial No. 742,959

In France December 21, 1943 Section 1, Public Law 690,.August 8, 1946Patent expires December 21,1963

' 17 Claims. 1

This-invention.relates to dispensing, and more particularly to methodsand devices for dispens-- ing viscous or semi-solid materials, such'asheavy lubricants, under pressure.

The general object of the inventionis to 'provide novel and improvedapparatus and meth ods of the class described.

A more specific object ofthe invention is the provision of. a force-feedpump for viscous or semi-solidlubricantsand the like, in which novel andrefiicacious meansare provided for insuring that anadequate chargepoi.material from the reservoir: or container is: always available in thepump chamber.

Inudesigningany. compressor or injector. for the dispensing of heavylubricant under pressure; the same difiiculty is encountered, namely,the proper feeding of the force pump.

Heavy-lubricant; such as grease for autorno tive vehicles and othermachinery, is a material whichdocs not obey' the laws of 'hydrostatics,since it is not sufficiently fluid to seek its :own

horizontal level, at least at normal temperatures. However; in orderto'insureits distribution or dispensing .under pressure, it is necessaryto introduce. the charges promptly. and eiiiciently into the chamber orcylinder of the force pump. In order toeffect this purpose; the meresuction of a pump is generally insufiicient and without some other meansof feeding the pump, the distributor or injector'device is quicklyrendered inoperative.

Various proposals have been made, and have been usedwith. indifferentsuccess,-for the purpose cf efiecting in some fashion the feeding orprimingyof the pump with these heavy lubricants; These measures havegenerally involved one of the following expedients: inclosingcthelubricant in a sealed container into the interior of which compressedair is introduced; providing a gravity or power actuated piston within acylindrical reservoir, which pistonis adapted to.

restmechanically upon the surface of the lubri-= During operation, the:manipulation of the force: pump causes hollows or airapockets to 1f01m".in the .bOdylIlOflubIlCant and this completely disables thecompressor, which can be started again only after areductionorelimination of suchpockets.

The present invention'contemplates the provision of means for insuringthe continuous-packing of the lubricant and its introduction into thepump cylinder in continuous form-without voids or air pockets. Thispurpose is accomplished by subjecting the reservoir or container whichholds the supply of-lubricant and which is provided in its lower portionwiththe'force pump, to successive jarrings, the effect of-whichis toaccumulate the lubricant-in thelowerpart of the reservoir and thus feedit to thewforce pump.

The reservoir or 1 container is carried on a vertical shaft, andat everypump stroke it is liftedto a certain height. When it reaches the highestpoint of'its course,- it is released and allowed to fall freely,acquiring acceleration until'the instant'whenit strikes upon an abutmentat the lowest point of'its movement. At that instant, the reservoiritself stops abruptly, but the lubricant which it contains,-because ofthe momentumdeveloped during the fall, con-'- tinues its. movement afterthe stopping. of the reservoir, and accumulates within the low'estpartof the reservoir, which comprises the pump chamber, thus eliminating any.voids or pockets.

In the preferred form of the invention, in order to combine the packingoperation with the pumping procedure, the usual arrangement of the pumphas been reversed and the piston thereofv held stationary while the body.or cylinder of'the pump (which is integral'with the reservoir orcontainer) is movable; Thus in the reciprocatory motion of the pumpingarrangement two strokes are utilized, a forward stroke for the purposeof effecting the compression of the lubricant in the cylinder of thepump and its discharge therefrom, and the return stroke for the purposeof effecting the packing or cramming of the reservoir.

With this arrangement, if a stoppage should. occur due to the formationof an air pocket, it is-suflicient to'continue the pumping movement fora few strokes, which will have-the effect of eliminating the air pocketandpacking the pump cylinder in a very positive manner. After a few idlestrokes the pumping action will resume automatically and the flow oflubricant will proceed.

Another object of the invention'is to: provide both manually operableandmechanically operabie means for a dispenser of'this type.

A further object is to provide a mobile or port ables-device "adapted--to-- support and transport a plurality of containers and pumpingunits, each adapted to dispense a different kind of lubricant rangingfrom motor oils to the heaviest greases; and to provide in such aportable dis penser, means for selectively bringing a given dispensingunit into operative position.

Other objects and features of novelty will be apparent from thefollowing specification when read in connection with the accompanyingdrawings in which certain embodiments of the invention are illustratedby way of example.

In the drawings,

Figures 1, 2, and 3 are diagrams illustrating the principle of operationof the novel pump; Figure 1 showing the position of the pump prior tothe beginning of the compression stroke; Figure 2 the position when theeffective compression begins; and Figure 3 the position at the endcompression stroke;

Figure 4 is a view in'perspective of a quadruplex selectivecompressor-dispenser embodying the principles of the invention;

Figure 5 is a view in vertical section through the pump and supplycylinder or dispenser shown in Figure 4;

Figures 6 and 7 are fragmentary sectional views on an enlarged scaleshowing the pumping mechanism of the respective oil and grease pumps ofFigure 5;

Figures 8, 9, and 10 are diagrammatic views showing several positions ofoperation of the dispenser elements; Figure 8 showing the positions ofthe pump cylinder, the elevating slide block, and the treadle at the endof the compression or discharge stroke (corresponding to the diagram inFigure 3); Figure 9; showing the positions of the parts at the end ofthe impact or jarring stroke (corresponding to the diagram in Figure 1);and Figure 10 the release position of the parts'preparatory to rotatingthe support to bring in the cylinder and pump into operative positiOn;

Figure 11 is a perspective view of a grease drum or cylinder which maybe used in preparing a filling cartridge for the cylinders of thedispenser;

Figure 12 is a fragmentary sectional view of the lower portion of agrease cylinder showing novel means for stirring or whipping thelubricant to facilitate the packing thereof; and.

Figures 13, 14, and 15 are somewhat diagrammatic views in verticalsection and elevation, showing three successive positions of operationof a modification in which the device may be mechanically operated orpower driven; Figure 13 showing the position of the operative parts atthe beginning of the compression stroke; Figure 14 near the end of thecompression stroke just before the beginning of the jarring orcompacting stroke; Figure 15 showing the parts at the end of the jarringstroke.

Before describing certain preferred embodiments of the invention indetail, the broad principles of operation of the invention will be setforth in connection with the diagrammatic showings in Figures 1 to 3 ofthe drawings. In these diagrams the lubricant reservoir is indicated bythe reference character a and it is filled with a supply of heavysemi-solid lubricant or other material to be dispensed which isindicated at a. The reservoir is narrowed at its lower end to form apump body 22 which provides a chamber within which the pump shaft orpiston c is adapted to 'be received with a rather close clearance. Thepiston c is hollow having a central passage- 4 l way 0' through whichthe lubricant may be discharged and there is disposed within the lowerend of the bore 0' of the piston c, a ball valve h which is urged towardits seat at the mouth of the bore 0' by means of the coil spring hPreferably the piston, the reservoir, and the pump cylinder are alldisposed axially of the dispenser.

The piston c is fixed with relation to the device, and the reservoir orcontainer a and the pump body I) are adapted to be moved through thedistance d which indicates the total length of stroke of the pump.

At the beginning of the compression stroke which is the position shownin Figure l, the lubricant fills the chamber enclosed within the pumpbody I), and it will be noted that in this position the reservoirdescends low enough so that the piston 0 will be withdrawn entirely fromthe pump body I), the lower end oflthe piston being at this instantopposite the converging or tapered side walls 0 of the reservoir, anarrow annular space 2 being afforded around the end of the pistonthrough which lubricant may move downwardly into the pump body I).

When by some manual or mechanical means, the reservoir or container atis lifted along its axis, the lower end of the piston c (guided'asnecessary by the conical walls 6) completely stops up the opening intothe pump cylinder b, all as indicated in Figure 2 of the drawings. Fromthis point on, the lubricant which is enclosed within the pump cylinderbegins tobe compressed, and since it has no other outlet than the axialchannel or bore 0 of the piston, the descent of the piston into the bodyof the pump will cause the discharge through the bore of the piston of aquantity of the lubricant equal to the volume of material containedwithin the body of the pump, and with a pressure proportional to theforce lifting the reservoir. The upper end of the tubular piston is ofcourse connected with the piping 0r hose system of the distributor ordispenser.

When the reservoir arrives at the upper end r of its course it (asindicated in Figure 3) the lifting force is suddenly removed, and thenunder the influence of the weight of the container (augmented by springaction if desired) the container falls vertically through the height (2to the lowest point of its course.

During the dropping of the pump body and reservoir, the piston valve itcloses the bore 0' and thus a partial vacuum tends to be created withinthe pump cylinder, and by the time the falling reservoir and pumpchamber has reached the point indicated in Figure 1, the piston c hasleft the pump chamber and lubricant is free to enter the chamber bthrough the annular clearance space e. The lubricant begins to enter thepump chamber both under the action of the outside air pressure on thesurface of the body of lubricant a as well as under the influence of thekinetic energy stored up in the lubricant. The stopping of the free fallof the container is eliected by impact on the fixed piece or anvil 1which determines the lowest point of the course of movement of thepump'and reservoir. Upon such impact, the inertia of the body oflubricantcauses the pump chamber b'to completely fill with a chargewhich is ejected during the next cycle of operation of the pump.

Having described broadly the principle of operation of the invention,certain practical embodiments will be set forth in considerable detail.For

' example, there is illustrated in Figure 4 of the ass-53 532;;

5: drawings-a portable rdispenserxadapted. to carry and supplylubricants of three different. types; Of course, withinrthe scope: of:the invention, any desired number of. containers and associatedpumping. arrangementsmay be carried'in. a similar mannena. but it?'is.:. .probable. :that such machines ;would.: be limited .by practicalconsiderations to about. four container-"sand pumping arrangements. For.the sake: of illustration; a machine carrying three separatesupplies oflubricant is shown in Figure The cylindrical reservoirs are indicated bythe reference numerals loruand it, will be seenrthat theyare providedwith downwardly convergent bottle-like lowerportions I! the necks ofwhichare receivedjin and 'normallysupported by the enlarged portions 12'of. the: three-armed spider member 1 3 which is supported upon a'central shaft the lowest end of. which is receivedqwithinsthe socketmember I5 of-the central carriage frame 16 the forward end.of-whichis.pivotally carried by the-axle I! supported by the twoground-Wheels Hi .The car-- riage frame [6 extends rearwardly anddownwardly as at H" and-terminates in a laterally extended stop lug 19and may be provided at an intermediate-portion with a caster 2'0;-

Theu-central supporting; shaft I4-Which is received-within the socketl2, and which in- Figure 4 isconcealed rby the-surrounding; cylinderslflr-carries at its upperendthe dislc or hub frame 22 which is providedwitha plurality of upwardly extending divergent spokes or supports.v 23to the upper ends.of which is secured .the :hand

wheel or circular handle 25,-. by meansvof which the, entiredispenserwma-y. be tilted-and trolled upontheground wheels l8 andthusthe lubricanttransported .to .points where it is needed". The

wheel-25.alsoaffordsmeans for rotatingtheshaft i 4,? the spider. I3,and. .the dispensing. units. a l El,.. II. for bringingselected ,ones ofthese units to l a dispensing positions as..will be described.

The upper ends ofthe reservoir cylinders ii! are provided with theenveloping lids orclosures,

.21. which are preferably. cylindricaluor dome shaped and through whichthe tubular dispensing shafts 30. extend.

The disk ..frame. 22;.is provided .at intervals.

around its periphery with lugs 32 .'.which are kerfed to provide meansfor receiving theshafts 3B and permittingthem-toi be removed fromthelugs when the cylindersuor reservoirs J 8' are ap-.

plied to or removed from the.carrier,-.all of. which will be explainedin.fu'rther detail .in connection.

with Figure .5 of thedrawings.

Sets of jointed tubing or piping. dB-arecoupled as at 36- to the severalhollow outlet shafts or pipes and each ofthese sets .ofpipes .is.

provided with a discharge. coupling as indicated. at 31, by means ofwhich'it may be applieclfto. the grease connectionof an automobile. orthe. like. The carrier is provided witha foot treadle.

as: whichis operatively connected with. a .device indicated generally atdl for operating the pump.

associated with the particular cylinder or. con.-

tainer which is disposeddirectlyabove themech anism AL. The details .ofthese devices ..will be presently described.

Referring/now more particularly .to .Figure 5 of, the drawings, thefollowing elements will be recognized from the brief. descriptions.given in connection-with Figurev 4: the reservoirs or containers Illwith theirconverging lowerportions I l,

the hollowenlarged portions l2- of-the rotating spider 3, this spiderbeing fixed to the centrally: disposed .vertical.-,. shaft 1' M :whichlliS 1:: rotatablym:

mounted within the; housing .;;I 5 :forming a part ofw'theyicarriageiii-supported .by gthe' axle; IT on therground 'wheels *l 8:: A'splitcollar..:l 5". retains the: central shaft. al 4 -in rotatable 1 positionupon 1 the carriage I51: Thexrear-portionll" of the carupon whichtheedischargehose or pipingmay bewsupported:

Referringnow to rzthe specific details: exhibited by; Figure 5, theremayt be mentioned the bottom castings-5B .oflthe reservoirs rlll -whichare recessed-as at 5|,which-recess. together with the chamber 152 withinthe lower portion H of the containers, providesthe pump chamber; Thepumping arrangement: in [the left-hand cylinder I llin Figure 5,and=also shownon anienlarged scale. inFigure 6, willafirst. bedescribed. This: dispenser; is adapted for use in connection with" the;distribution of. a heavy oil.a Axially of the 1 cylinder or. containerll] there is. supported the hollow shaft 30. which passes through acentral opening. inv the; top-10f .the1-dome-like. cover. 21 andisreceived'within the kerf. or slot-32 'tformed in the lug 32 .of theupper. disk 22 Threaded 30; upon .the. hollow shaft Sitinteriorly ofvthe cover 2! is .a nut.54 andexteriorlyof the cover a con-i cal nut.55. is. threaded, .thesetwo nuts serving to clamp between themthecover-Zl andtheupper and .lower. disks orrwashers, ..56.-..and 51..The

; conical portio'n.58 of thenutJB-isadapted to..be-

received within'. a similarlyv shaped .recess .in ..the lower. surfaceoflthe lug ,32i I The. couplingjll" provides means for attaching thepiping...3*5 to.

the upper end of the. .hollowshaftBU.

The lower end of. the. hollow delivery shaft. 30 is provided with. apiston. member. Bllfwhichis adapted .to be closely. receivedlwithinrtheportion 52 of..the pump chamberi A ball valve 6l serves.

to close the small openingin the. bottom of the. piston 60, this valvebeing urged downwardly.

toward its seat by means of a spring 612..-

Aguideblo'ck or pedestal. is seated upon the sloping lower Walls of thecontainer IO and is.

provided with; an opening in-its upper end to receive and guide .thelower endof the shaft 30,.

andthe pedestal is also provided with a recess fifiprovidingaspring seatfor the lower endv of the coil' springBG which surrounds .the shaft 30and seats at its upper end against. the nut 54.

In this Way a telescoping container comprising theelernentslfl and 2i!"is provided, said elements beingurged apartby means'of spring 68 toassume thepositions of the various parts shown in Figure 5.

lie-operation of the dispenser will be" explained in greater detaillater on; but it willbe sufiicient toindicate here that-whensuitabl'elifting means is applied tothe" bottom casting 50 of the pump.

andreservoir assembly, the entire reservoir. I

will beraised'within the cover' 2? against the pressure ofthespring Mami the piston 60,,fin effect; will-descend within the pump chamber 52causing the oil or grease trapped therein to pass through the opening inthe lower end of the piss ton;=dis'plac-ing the valves F and passingupwardly througlrthehollow bore of-the shaft 30 and thus through thepiping-'35-to'the point of discharge. When the. container and pump havereached the uppermostarpoint of 1 their movement; the lifting 753meanspiisz releasedlfandz the eon-tainer "l8 "allo'wed' to drop, bothunder the action of gravity and the expansive force of the spring 68, sothat the casting B strikes the enlarged portion [2 of the frame I3,which acts as an anvil, and the chamber 55'is thus filled with lubricantwhich passes from the main portion of the reservoir it through theclearances indicatedat 69' around the lower edge of the piston 69.

The construction and operation of the grease dispenser illustrated atthe right-hand side of Figure 5 of the drawings and upon enlarged scalein Figure '7, will now be described. The intermediate and upper portionsof the reservoir and dispenser in this instance are identical with thecorresponding parts of the one just described in connection with theleft-hand side of the figure and similar reference numerals are employedin indicating the several parts. This embodiment of the inventiondiffers from'the one previously described only in the arrangement of thepump, piston, and cylinder at the base ll of the container I 0, and themechanism is more particularly adapted for the discharge of lubricatinggrease under high pressure, the grease being discharged under pressuresof from 10,000 to 12,000 pounds per square inch. In this embodiment thelower end of the hollow shaft 30 is comprised by an extension 30a havina narrow bore 36b terminating at'its lower end in a fine opening 61a.The extremely narrow opening 6m is the practical equivalent of the ballvalve 6| employed in the preceding embodiment. The diameter of theconstriction 6 I a is large enough to permit the free passage oflubricantunderthe pressure applied thereto, but small enough to offereffective resistance to the return of the lubricant when the latter isonly under the influence of atmospheric pressure.

In this embodiment a smaller supplemental pump body 7!] is employed toform the pump chamber, and this element is seated within the recess 5!within the bottom casting 56 of the assembly. The upper end of the pumpbody or cup If! is shouldered as at H and is surrounded by the flangering 12 which may be threaded upon the cup 10. A flanged packing element14 is clamped between the two members and 12 and forms a seal againstthe piston shaft 30a when it descends into the pump chamber. Thepressure spring 68 seats upon the member 12 and urges the pump bodyassembly downward. The vertical annular flange of the packing element14, due to the pressure which prevails in the pump body I0, is appliedvery strongly to the piston and prevents any leakage of lubricant, theseal becoming more effective the higher the pressure. However, it is tobe noted that a leak would not cause a loss of material but simply thereturn to the reservoir H) of a portion of the lubricant contained inthe pump body 10.

The means for raising the several containers and pump assembly andjarring the material into the pump chambers will now be described.Preferably formed integrally with the supporting frame I6 is the tubularguide portion 15 and within this guide there is disposed for verticalreciprocation the cylindrical slide block or lifting element it. Theguide portion 15 is disposed directly beneath the enlargement l2 of therotatable spider l3 and the opening in the portion I2 is of the samesize as that in the guide portion 75 and in registry therewith. Theliftin block or sliding cylinder 11 is fitted at its other end to themarginal shouldered portion of the casting 50 comprising the lower endof the reservoir pump assembly.

The treadle 40 is pivoted as at 19 to a downwardly extending bracketportion of the carriage frame It and the shorter arm 8! of the treadleis operatively connected with the lifting block 11 by means of the link82, this link being pivotally connected to the lifting block by means ofthe wrist pin 83 .and to the short arm 8| of the treadle by means of thepin 84. I

The operation of the device will be readily understood from aninspection of Figures 4 to 10 inclusive of the drawings, the last threefigures showing diagrammatically three different stages of the pumpinoperation. The distributor hose 35 which is attached to the particularunit II] which is disposed above the lifting block is connected to thepoint to which the lubricant is to be applied. Then the treadle 40 isdepressed until it strikes the stop flange I9 on the rear end. of thesupporting frame. This disposes the principal operative elements in thepositions shown in Figure 8 of the drawings in which the unit I!) islifted by the lifting block 11 which contacts with the bottom casting 50thereof and is guided upwardly within the tubular portion 1 5 of theframe. During this movement any material within the pump chamber illwill be forced through the constriction 6m and upwardly through thehollow interior 30b of the central shaft 35, 38a, and thence outwardlythrough the piping 35. V 7

Next the foot is released from the treadle 4E! and the container andpump assembly [0, H allowed to fall freely under the influence ofgravity and the urging of the spring 68. The bottom casting 50 of theassembly strikes the anvil enlargements [2 at the ends of the arms ofthe spider l3 and this has the effect of jarring the lubricant from themain reservoir into the pump chamber 10 through the adequate clearancesallowed, as shown in Figure 7. Thus any air pockets or voids which maybe within the pump chamber will fill up and the pump is ready for thnext ejecting action which is effected, of

course, by again depressing the treadle 40. The" dropping movement ofthe various parts is indicated clearly in the diagram in Figure 9.

In order to bring any of the other tanks or reservoirs l0 into positionfor dispensing the contents thereof, the shaft l4, along with the spiderl3 and the upper disk frame 22, is rotated until the selected tank andpump unit is disposed above the plunger or lifting block guide 15.

However, in order to effect this rotatable adjust- V ment, the liftingplunger 11 must be depressed sufficiently to be retracted well Withinthe upper margin of the guide casting l5 and below the perforated anvilblock l2. To accomplish this the treadle 40 is raised to the extremeupper position shown in Figure 10 of the drawings, whereupon the liftingblock or plunger 11 is Withdrawn so that the spider I 3 may be freely,

. portiontofthedrum Sllwithits contained lubricant supplyis-introducedinto the reservoir. In

order to effect-this"operation the dome-like covers 27 f the reservoirtogetherwith the cen- 1 tral pump-shaft-BU is depressediagainst theresiliency of I the spring 63, the pumpwshaft 3E3 descending into thepump chamber .andthe conical nut 55 freed froni the similarlyshapedrecess 58 in the lugs 32-of-the upper bracket 22,. and

thus the upper ends of the shafts'30 may be with- I drawn through theslots on kerfsv 32's in th lugs i 32. The entirecontainerand-pump:unitis athus tilted about the supportingenlargements I2 at the ends of thearms of the spider I3 and. may

I be then lifted out-of the carrier-for replenish-3 ing. Thecovers-27ers removed togetherlwith the pump shaft andspring-68-and-thegrease cartridge inserted, whereupon the mechanism isreassembled by reversing the procedure dustdepump shaftell-by means ofthe tight windings 96 at the apices of :the spring-devices. As in theother embodiments the l lower end of the pump shaft 3o -isladapt'edto-enter and-be withdrawn from the pump chamber HM-the sealing beingprovided-by the flanged packing element M which is clamped to the-upperedge-of the pump body IIV- bymeans of the threaded and funnelshapedannular flanged element 12. This arrangement may-well -be used when verycompact lubricants are dispensed. The larger: convolutions ofeach-spiralareadaptedtorest against abutments extendinginwardly from thewalls of the reservoir-I0 and exemplified-by the pins or hooks 98.During the ascent-and descent of the reservoir thespringswill bedeformed by alternate stretching and compression and this has-litheresult -of whipping the lubricant upon every pump strokeand thusmodifying the consistency thereof and rendering the packing easier.Theaarrangement shown in Figure 12 may of course be applied .to any ofthe embodiments illustrated.

The principles of the invention may be applied to a compressor.'or.;dispenser having mechanical or power driven. control just as wellasin. the case of the manually operateddevice. One eX- ample of amechanically driven dispenser is shown diagrammatically in Figures13,.14yand 15 of the drawings. 'For. purposes ofillustration,..thedevice is carried by a verticalv shaft ABE! secured to a wall or otherfixed support MI by means of l the fastening elements I02. Fixed uponthe vertical shaft Hill are the threebracketarms I03,

I04, and H15. Thebracket Hi4 carries the perfow rated anvil enlargementII2 upon which the lower end I I I of the reservoir I H) rests, thelower portion III containing the pump chamber I12. The cover I21 carriesthe pump. shaft I30. just as in the case of the other embodiments, theas-i sembly IIfl, I21 being urged apart by means of the coil spring I63.The upper ordis'charge end i of the hollow shaft I30 is received withinthe kerfed end I32 of the bracket I03, a conical or spherical nut I55.being received within a similarly shaped recess on thebottomof thebracket enlargement or lug I32, this arrangement being it exactlyanalogous l to the others previously described.

The vertically I reciprocating cross-head or plunger Ill isguided in thehollow interior of the anvil abutment I-I2and is driven by the followingmechanism. Rotatably mounted upon a shaft 2%. carriedby the lowerbracket W5; is a 5 crank disk 26! which may be driven inthedirectionindicated by the arrows, by any suitable driving means. A crankarm 2% is also carried :by the shaft 266 and rthe endfillti of the crank=arm2205 is. pivotally connectedwith the sliding plunger ill by means ofthe link I82. The crank uarm 265. and the shaft 2% are freely rotatable=upontheebracket 1.05 and the crank" 205 is disposed alongside the faceof the drive disk MI. The disk 26? is. provided with adrive pin 2II)which is: adapted to abut the rearwardly extending portion of the crankarm 205 and to drive the crank as thedisk moves in the direction ofthearrows. The. disk *may be driven fromlan independent motor or from arotating part on themachine to be lubricated.

In Figure 13 of the drawings the partsrarein -the-positionwhich theyassume at the beginning of the compression or ejection stroke. The'diska is rotatingat a relatively slow rate of' speed .25'and the pin orabutment 2I0" moves the crank arm 235 in a clock-wisedirection. Thus thelifting cross-head I'I'I is moved upwardly through the intermediary ofthe connecting link I82; and the container and pump assembly III], IIIis raised.

and tankvassembly augmented by thepressure of thespring ItS causestheassembly to dropto the position shown-in Figure 15 whereupon thebottomtof the tank III strikes theanvilportion H2 and thezmaterial isjarredand packed into the .pump chamber I I2. "At this lowerdead centervpositionthe parts remain at rest as shownvin I Figure 15:until theabutment I I0 arrives in the upperpositionwhereupon it again contactsthe arm 2G5 and drives :the crank=as shown in Figure 13.

:By. this means, anevenslow ascent of the reservoir is attained wherebya steady flow of 5 material is dispensed. through the upper; end of 1thehollow shaft I33; and an abrupt and sudden descent of the tank is.provided for, in order to xjar the lubricant into the pump cylinder.

It is clear that the pedal. operated apparatus shownin Figures i and 5may be constructed with a single reservoir instead of the plurality as:shown. J 'In that case theoutlet tube for lubricant which' is attachedto theupper end of the hollowpistonloadimimay-be connected with astorage chamber for lubricant under pressure which 1 maybe located onthe inside of the tubular upright shaft I4. 'Such-a storage chamber maybe composed essentially of the cylindrical hollow shaft containing thebody --of lubricant subjected to the pressure of l a piston which"compresses a the spring pressed piston. Then the accumulated lubricantin the storage chamber may be distributed by the simple manipulation ofthe manually operated valve, without the constant actuation of thetreadle 40.

Various changes and modifications may be made in the embodimentsillustrated and described herein without departing from the scope of theinvention as defined by the following claims.

Having thus described the invention, what is claimed as new and desiredto be secured by Letters Patent is:

1. In a dispenser for semi-solid materials, such as heavy viscouslubricants and the like, a supporting frame, a reservoir mounted forvertical reciprocation in said frame, the narrowed lower portion of thereservoir constituting the chamber of a reciprocating force pump, ahollow tubular piston fixed relatively to said frame and adapted forrelative motion within said reservoir and chamber alternately tocompress and eject the contents of said chamber and to withdraw from thelatter to permit recharging of the chamber, an outlet opening affordingcommunication between said chamber and the interior of the hollowtubular piston, means for intermittently and alternately lifting saidreservoir to eject the contents of the chamber through the hollow pistonand letting the reservoir drop upon an abutment on said frame, wherebythe lubricant is packed into the pump chamber without voids or cavities,and means connecting said tubular piston to a discharge point.

2. In a dispenser for semi-solid materials, such as heavy viscouslubricants and the like, a supporting frame, a reservoir mounted forvertical reciprocation in the frame, said reservoir being provided witha cup-like bottom extension of less diameter than the upper main portionthereof, said extension comprising a reciprocatingpump chamber, a hollowpiston member attached at its upper end to said frame, and extendingdownwardly through the reservoir, the lower end of said piston memberbeing of a diameter to fit snugly within said pump chamber, a one-wayopening in the lower end of said hollow piston member, means forvertically reciprocating said reservoir with respect to the pistonmember so that at the lowermost point in the downward stroke thelowerend of the piston member is withdrawn from the pump chamber and isdisposed within the main portion of the reservoir, leaving an annularopening for the passage of lubricant from the main portion of thereservoir into the chamber, and whereby during the upward stroke of thereservoir the piston enters the pump chamber and forces the lubricanttherein through the one-way opening and through the passageway in thehollow piston, discharge means connected with the upper end of saidhollow piston, and means for abruptly terminating the downward stroke ofthe reservoir, whereby the impact jars the lubricant into the pumpchamber and compacts it therein eliminating voids and cavities.

'3. In a dispenser for semi-solid materials, such as heavy Viscouslubricants and the like, a reservoir, a force pump having its pumpchamber in the lowermost portion of said reservoir, a charging cartridgefor supplying lubricant to said reservoir, said cartridge comprising acontainer with side walls of approximately the same size and shape asthe side walls of said reservoir but having its bottom wall removed wheninserted in the reservoir, means for intermittently raising and loweringsaid reservoir and means for abruptly terminating the lowering stroke,whereby the mass of lubricant is jarred and continually urged downwardlyand fed from said cartridge container and from the upper portion of thereservoir into said pump chamber without the formation of voids orcavities.

4. In a dispenser for semi-solid materials, such as heavy viscouslubricants and the like, a supporting frame, a reservoir mounted forvertical reciprocation in said frame, an abutment carried by saidsupporting frame itself entirely exteriorly of said reservoir, the lowerportion of the reservoir constituting the chamber of a reciprocatingforce pump, a piston fixed relatively to .said frame and adapted forrelative motion within said reservoir and'chamber alternately tocompress and eject the contents of said chamber and to withdraw from thelatter to permit recharging of the chamber from the reservoir, means forintermittently and alternately lifting said reservoir to eject thecontents of the chamber and letting the reservoir drop upon saidabutment, whereby the jarring serves to pack the lubricant into the pumpchamber without voids or cavities, and a coil spring connecting thepiston and reservoir andserving'to urge the reservoir toward'itsdownward position, thus supplementing the force of gravity in effectingthe jarring stroke, whereby the speed and kinetic energy of thelubricant is increased.

5. In a dispenser for semi-solid materials, such as heavy viscouslubricants and the like, a supporting frame, a reservoir mounted forvertical reciprocation in said frame, the lower portion of the reservoirconstituting the chamber of a reciprocating force pump, a pistonsupported by said frame and adapted for relative motion within saidreservoir and chamber alternately to compress and eject the contents ofsaid chamber and to withdraw from the latter to permit recharging of thechamber, means for intermittently and alternately lifting said reservoirto eject the contents of the chamber and lettin the reservoir drop uponan abutment on said'frame, whereby the lubricant is packed into the pumpchamber without voids or cavities, and one or more coil springs of ahelical configuration conforming to the nappe of a cone disposed withinthe reservoir, one terminal of the spring being secured to the pistonand the other to the reser voir, whereby during reciprocation of thereservoir the spring will alternately contract and expand to agitate thelubricant and thus assist in eliminating such voids.

6. In a dispenser for heavy lubricants and the 7/ like, a supportingframe, a reservoir mounted for vertical reciprocation in said frame, thelower portion of the reservoir constituting the chamber of areciprocating force pump, a piston fixed relatively to said frame andadapted for relative motion within said reservoir and chamberalternately to compress and eject the contents of said chamber and towithdraw from the latter to permit recharging of the chamber, means forintermittently and alternately lifting said reservoir to eject thecontents of the chamber and letting the reservoir drop upon an abutmenton said frame, whereby the lubricant is packed into the pump chamberwithout voids or cavities, said last named means comprising a plungerguided in said frame beneath said abutment, a pitman operativelyconnected with said plunger, an actuating means for said pitman operableto raise. said plunger during the pumping stroke and adapted ,to. bereleased topermitthe plunger and reservoir to fall during thereturn-stroke.

'7. The dispensing device as set forth in claim 6 in which-saidactuating-means comprises a foot lever fulcrumed on *said frame, andmeans pivotally connecting said pitman with said foot lever.

8. The dispensing device 'as-set forth in, claim 6, in which said,actuating means comprises a crank member, a rotary follower adapted topush said crank member through substantially onehalf revolutioncorresponding to the upward pumping stroke of the plunger and reservoir,and to allow said crank member to break contact with said followerduring the one-half revolution corresponding to the free fall of theplunger and reservoir, and driving means for said follower.

9. The dispensing device as set forth in claim 6, in which saidactuating means comprises a crank member, a rotary disk disposedadjacent the crank member and in a close parallel plane, a projection onsaid disk adapted to push said crank member through substantially a halfrevolution corresponding to the upward pumping stroke of the plunger andreservoir, and to allow said crank member to break contact with saidprojection during the half revolution corresponding to the free fall ofthe plunger and reservoir, and driving means for said disk.

10. A portable dispenser for heavy lubricants and the like, comprising awheeled frame, a rotary carrier adjustable about a vertical axis on saidframe, a plurality of reservoir and dispensing pump units mounted onsaid carrier, each having its pump portion in the lower part thereof, alifting device at a fixed point on said frame, said carrier adapted tobe rotated to position a selected one of said units in adjacentoperative position relative to said lifting device, and means foractuating said lifting device to raise said unit and let it fall upon anabutment to jar the contents into compact condition in the pump.

11. A portable dispenser for heavy lubricants and the like, comprising awheeled frame, a rotary carrier adjustable about a vertical axis on saidframe, a plurality of reservoir and dispensing pump units mounted onsaid carrier, each having its pump portion in the lower part thereof, anabutment on the carrier, a lifting device at a fixed point on said framebeneath said carrier,

"said carrier adapted to be rotated to position a selected one of saidunits directly above said lifting device, and means for actuating saidlifting device to raise said unit and let it fall upon said abutment tojar the contents into compact condition in the pump.

12. The dispenser as set forth in claim 10 in which the units areremovably mounted on the carrier, the latter comprising a lower socketedmember and an upper socketed member, the bottoms of said units beingtiltably disposed in the sockets in the lower member and upper yieldableportions of said units, received in the units of the upper member.

13. The dispenser as set forth in claim 10 in which the units areprovided with cover members, and with springs urging said cover membersupwardly with respect to the reservoir portions of said units, and areremovably mounted on the carrier, the latter comprising a lower socketedmember and an upper socketed member, the bottoms of said units beingtiltably disposed in the sockets in the lower member and the springpressed cover members of the units being yieldably received inthessockets of the'uppermembers of the carrier.

14. In a dispenser for heavy lubricants and'the like, a supportingframe, a reservoir mounted for vertical reciprocation in saidframegthelower portion of the reservoir constitutingithe chamber of areciprocating force pump, a piston fixed relatively to said frame andadapted for relative motion within said reservoir and chamberalternately to compress and eject the contents of said ,chamber and towithdraw from the latter to permit recharging of the chamber, means forintermittently and alternately lifting said reservoir to eject thecontents of the chamber and letting the reservoir drop upon an abutmenton said frame, whereby the lubricant is packed into the pump chamberwithout voids or cavities, said last named means comprising a plungerguided in said frame beneath said abutment, and actuating means for saidplunger comprising driving means for operatively engaging the plungerand raising it during the ejecting stroke and automatically disengagingat the end of said stroke to permit the plunger and reservoir to fallfreely upon said abutment during the return stroke.

15. In a dispenser for semi-solid materials, such as heavy viscouslubricants and the like, a supporting frame, a reservoir mounted forvertical reciprocation in said frame, a reciprocating force pump havingits chamber at the lower portion of said reservoir and adapted tocommunicate therewith, a piston supported for relative movement withrespect to said reservoir and within said chamber alternately tocompress and eject the contents of said chamber and to Withdraw from thelatter to permit recharging of the chamber from the reservoir, means forintermittently and alternately lifting said reservoir during theejection of the contents of the chamber by the piston and letting thereservoir drop upon said abutment whereby the jarring serves to pack thematerial into the pump chamber without voids or cavities, and springmeans continually urging said reservoir downwardly toward said abutment,thus supplementing the force of gravity in effecting the jarring stroke,whereby the speed and kinetic energy of the lubricant is increased.

16. In a dispenser for semi-solid materials, such as lubricating greasesand the like, a support, a reservoir having an imperforate bottom walland being movable with respect to said support, an ejector pump chamberin the lower part of the reservoir, an anvil carried by said supportbeneath and exteriorly of said reservoir, means for raising saidreservoir during the ejection action of said pump and for letting thereservoir drop from such raised position so that its bottom wall strikessaid anvil, whereby the resulting jarring serves to pack the materialinto the pump chamber without voids or cavities, and without anydischarge through the bottom of the reservoir.

17. In a dispenser for semi-solid materials, such as lubricating greasesand the like, a support, a reservoir mounted for vertical reciprocationin said support, a reciprocating ejector pump having its pump chamber inthe lower part of said reservoir, a hollow piston carried by saidsupport and adapted for relative motion within said reservoir and saidchamber alternately to compress and eject contents of the chamber and towithdraw from the latter to permit recharging of the chamber, an outletopening affording communication between the chamber and said hollowpiston, means for intermittently and alternately 2,555,532 15 18 iiftingsaid reservoir to eject the contents of the REFERENCES CITED chamber andletting the reservoir drop upon an The following references are ofrecord in the abutment on the frame, whereby the lubricant is file ofthis patent: packed into the pump chamber without voids or cavities, andmeans connecting said hollow piston 6 UNITED STATES PATENTS to adischarge oint. Number Name Date 787342 Moore Apr. 11, 1905 HENRICHINCHO'LE' 877,509 Langstaff Jan. 28, 1908 970,479 Dunwoody Sept. 20,1910 10 1,3 0,798 Riley Nov. 30, 1-920

